Hi guys! I got a minor problem here, any help would be appreciated

Anyways, After patching Stainless Steel 6.3 to 6.4 (And adding the Bug Compilation Fix) I got a minor problem about the Mourtatoi not deploying the "Sharpened Stake" ability (Particularly in Sieges and sometimes in Field battles) and it's frustrating asf . The thing is that the ability is working perfectly in 6.3 and like i said after patching the game the skill doesn't take effect

Any help would be appreciated